Traillokyachandra established the dynasty, centered at Devaparvata (near Mainamati, Comilla) and expanded into modern Kachua Upazila before declaring himself as Maharajadhiraja.
Some famous villages of Ahir Dagar gotra are Dhatir, Mandkola,Jhakli, Duloth,Lulodh, Rajpura, Wajirpur, Panchgawa, Kho, Nathupur, Pathanwaal, Khanpur, Majri, Chandpur etc.
Maa Ugra Tara : This temple is located in between Rameswar chowk & chandpur (Tangi block) in NH-5 & 55 km from Bhubaneswar towards Balugaon & 35 km from Balugaon towards BBSR.
It also is one of three training centers directly governed by the Director General of the Department, along with Fisheries Training Institute (Chandpur) and Fisheries Training Academy in (Dhaka).
Down to Chandpur, Meghna is hydrographically referred to as the Upper Meghna.
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After Chandpur, with the combined flow of the Padma and Jamuna, it moves down to the Bay of Bengal in an almost straight line.